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Bosco Verticale – vertical forest garden balconies in Milan

Congratulations to Stefano Boerion his Vertical Forest. He proclaims: ‘The first example of a Bosco Verticale composed of two residential towers of 110 and 76 meters height, will be realized in the centre of Milan, on the edge of the Isola neighbourhood, and will host 900 trees (each measuring 3, 6 or 9 m tall) apart from a wide range of shrubs and floral plants. On flat land, each Bosco Verticale equals, in amount of trees, an area equal to 10.000 sqm of forest. In terms of urban densification the equivalent of an area of single family dwellings of nearly 50.000 sqm.’
But will it work? I do not anticipate a horticultural problem with growing the trees. But will the residents want them? I am sceptical. A planted balcony with shrubs, flowers and living space is a delight. But there is a long history of residents not wanting large trees too near the windows of their houses. Trees keep out the sun and block views. The trees on top of the building should be a great success – providing the structural, horticultural and stability issues have been properly addressed.

It could be imagined that the people who first buy into the development will want the trees – however what happens next really is up for conjecture! Perhaps the trees will be deciduous and/or selected to enhance the views by reveal and conceal techniques?

In any case it will be fantastic to see the creative landscape responses to the challenge of trees at altitude.